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प्रश्न
How will you separate a mixture of common salt, chalk powder and powdered camphor? Explain.
उत्तर
On heating the mixture, camphor will evaporates as it is a sublime substance. Its vapours can be collected which will solidify on cooling. Common salt and chalk powder mixture is then mixed in water. Common salt gets dissolved in water while chalk powder does not. Then by filtration, chalk powder is removed from the solution as it gets deposited in filter paper. The filtrate contains water and common salt. Common salt can be separated from water by evaporation process.
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संबंधित प्रश्न
Which separation technique will you apply for the separation of the following?
Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
Which separation technique will you apply for the separation of the following?
Small pieces of metal in the engine oil of a car.
Name a suitable technique of separation of the components from a mixture of calcium sulphate and camphor.
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Sublimation
Fill in the blank
Iodine, camphor, naphthalene, ammonium chloride and dry ice are some substances that _________
State the correct technique for the separation of the following mixture.
a sublimable solid and a non-sublimable solid.
Select the correct answer from the choice in the bracket.
The ideal method to separate iodine and KCI.
What is dry ice or cardice?
The energy for the process of sublimation can be derived either from the surroundings or from the heat supplied.
The correct match between items I and II is:
| Item - I (Mixture) |
Item - II (Separation method) |
||
| (A) | H2O : Sugar | (P) | Sublimation |
| (B) | H2O : Aniline | (Q) | Recrystallization |
| (C) | H2O : Toluence | (R) | Steam distillation |
| (S) | Differential extraction |
